We’re about 27 hours away from Space Shuttle Atlantis‘ launch. Conditions are looking good with only a 20% chance of weather violating the constraints. The launch of mission STS-117 was initially scheduled for sometime in March, but a hail storm decided otherwise. After repairs to both the orbiter and the external tank, the whole system is good to go for tomorrow’s launch at 7.38pm EDT (I believe that’s 1.38am CET).
Tomorrow’s launch will also be the first in a long time from launch pad 39A. Pad 39B has been used for launches lately while 39A received some maintenance. Pad 39B has now been deactivated for shuttle operations, so 39A will serve as the launch pad until the shuttle fleet is retired.